Paging method, terminal device, and network device

Abstract

A paging method is provided. The paging method includes that a terminal device receives, via a first paging-radio network temporary identifier (P-RNTI), downlink control information (DCI) transmitted by a network device, and acquires paging information. The first P-RNTI corresponds to at least one network slice.

What is claimed is: 
     
         1 . A paging method comprising:
 receiving via a first paging-radio network temporary identifier (P-RNTI), by a terminal device, downlink control information (DCI) transmitted by a network device, and acquiring, by the terminal device, paging information, the first P-RNTI corresponding to at least network slice.   
     
     
         2 . The method of  claim 1 , wherein the first P-RNTI corresponding to the at least one network slice comprises:
 the first P-RNTI corresponding to a first identifier (ID), wherein the first ID indicates the at least one network slice.   
     
     
         3 . The method of  claim 2 , wherein:
 the first ID is a first target number corresponding to at least one slice ID of the at least one network slice; or   the first ID is a second target number corresponding to a slice group comprising the at least one network slice.   
     
     
         4 . The method of  claim 3 , wherein the first P-RNTI is determined according to the first ID;
 wherein the first P-RNTI=FFFE-ID, wherein the FFFE represents a fixed number in hexadecimal, and the ID represents the first ID.   
     
     
         5 . The method of  claim 1 , wherein receiving via the first P-RNTI, by the terminal device, the DCI transmitted by the network device, and acquiring, by the terminal device, the paging information, comprises:
 receiving, by the terminal device, DCI format 1_0 scrambled by the first P-RNTI; and   receiving on a physical downlink shared channel (PDSCH), by the terminal device, the paging information according to time-frequency resource assignment in the DCI format 1_0.   
     
     
         6 . The method of  claim 1 , further comprising:
 receiving, by the terminal device, first mapping information transmitted by the network device, wherein the first mapping information is mapping information between different P-RNTIs and different network resources, wherein each of the network resources comprises at least one network slice; and   determining, by the terminal device, the least one network slice corresponding to the first P-RNTI according to the first mapping information.   
     
     
         7 . The method of  claim 1 , further comprising:
 receiving, by the terminal device, target mapping information transmitted by the network device, wherein the target mapping information is mapping information between different network slices and different numbers.   
     
     
         8 . The method of  claim 7 , wherein the target mapping information comprises second mapping information or third mapping information; and
 wherein one of the following:
 the second mapping information is mapping information between slice IDs of the different network slices and different numbers; and 
 the third mapping information is mapping information between different slice groups and different numbers, wherein each slice group comprises a plurality of network slices. 
   
     
     
         9 . A terminal device comprising:
 a receiver configured to receive, via a first paging-radio network temporary identifier (P-RNTI), downlink control information (DCI) transmitted by a network device, and acquire paging information, the first P-RNTI corresponding to at least network slice.   
     
     
         10 . The terminal device of  claim 9 , further comprising:
 a processor configured to perform random access (RA) in a target manner on condition that the paging information contains a user-equipment (UE)-identifier (ID) of the terminal device, after the receiver receives the paging information, wherein   the target manner is determined according to the at least one network slice.   
     
     
         11 . The terminal device of  claim 10 , wherein the processor is configured to:
 access a cell supporting the at least one network slice; or   access a cell supporting a target network slice, wherein the target network slice comprises n network slice with the highest priority among the at least one network slice, wherein n is an integer larger than or equal to 1.   
     
     
         12 . The terminal device of  claim 11 , wherein the processor is configured to:
 perform RA via an access resource corresponding to the at least one network slice; or   perform RA via an access resource corresponding to a target network slice, wherein the target network slice comprises n network slice with the highest priority among the at least one network slice, wherein n is an integer larger than or equal to 1.   
     
     
         13 . The terminal device of  claim 10 , wherein the processor is configured to decode the paging information, and perform RA in the target manner on condition that at least one paging message is acquired by decoding the paging information and the at least one paging message contains a UE-ID in consistent with the UE-ID of the terminal device. 
     
     
         14 . A network device comprising:
 a transmitter configured to transmit downlink control information (DCI) scrambled by a first paging-radio network temporary identifier (P-RNTI) to a terminal device, the first P-RNTI corresponding to at least one network slice.   
     
     
         15 . The network device of  claim 14 , further comprising:
 a processor configured to configure first mapping information between different P-RNTIs and different network resources, wherein each of the network resources comprises at least one network slice; and   the transmitter is further configured to transmit the first mapping information to the terminal device.   
     
     
         16 . The network device of  claim 14 , further comprising:
 a processor configured to number different network slices supported by the network device;   wherein the transmitter is configured to transmit target mapping information to the terminal device;   wherein the target mapping information is mapping information between different network slices and different numbers, and each number corresponds to at least one network slice.   
     
     
         17 . The network device of  claim 16 , wherein:
 the processor is configured to number slice identifiers (IDs) of the different network slices supported by the network device;   the transmitter is configured to transmit second mapping information to the terminal device;   the second mapping information is mapping information between the slice IDs of the different network slices and different numbers.   
     
     
         18 . The network device of  claim 17 , wherein the processor is configured to number the slice IDs of the different network slices supported by the network device in a first order, wherein the first order is one of:
 a descending order of the slice IDs, an ascending order of the slice IDs, an order of the slice IDs in the slice ID.   
     
     
         19 . The network device of  claim 16 , wherein:
 the processor is configured to group the different network slices supported by the network device, and configure different numbers for different slice groups;   the transmitter is further configured to transmit third mapping information to the terminal device;   each slice group comprises a plurality of network slices, and the third mapping information is mapping information between the different slice groups and the different numbers.   
     
     
         20 . The network device of  claim 16 , wherein the network device is a core network (CN) device, and the transmitter is configured to transmit the target mapping information to an access network (AN) device via an NG message, wherein the target mapping information is transmitted to the terminal device by the AN device.